Hint #1: The checklist will appear in a separate window, so you can
keep this window open and tweak the options until the final result looks
like you want.

Hint #2: Save the final HTML page via the FILE -- SAVE AS
menu function. That way you can reprint it whenever you like without having
to come back here to regenerate it.

Hint #3: Annotate the list on your trip to add missing items, or delete
items you took but didn't use. That way you can refine your list and make
it better. The "two checkbox" option gives you a way to mark the items you
actually used, not just packed.